European Union – Transport. Article 23(1) in conjunction with art 2(18) of Regulation (EC) No 1008/2008 should be interpreted as meaning that, when indicating air fares for intra-Community air services, air carriers who did not express those fares in euros were required to choose a local currency that was objectively linked to the service offered. That was the case in particular of the currency which was legal tender in the member state in which the place of departure or arrival of the flight was located. The Court of Justice of the European Union so held in a preliminary ruling in proceedings concerning the indication by the respondent air carrier, established in Germany, of air fares in pounds sterling for a flight from London to Stuttgart.